"A total of 193 million Americans are fully vaccinated, compared with 2 million on the day I took the oath," RIA Novosti quoted him as saying.

He noted that "more than 20 million have received extended protection thanks to boosters."

Earlier it was reported that a former employee and one of the regional executives of Ventavia, Brooke Jackson, who tested the Pfizer-BioNTech vaccine, reported irregularities in the research process.